thalmin
Retired game store owner
I believe the d10 was first designed and patented by Lou Zocchi of GameScience. The d% (d10 numbered by 10's) was introduced nearly simultaneously by a couple of manufacturers about 10 years later.EOL said:Also, I know that initially since the d10 is not a regular polyhedron in the early days they numbered d20's from 0-9 twice and then you would ink or color in one half of those numbers to indicate which was set 11-20 and which set was 1-10. Then some one "invented" the d10 and that particular kludge was no longer necessary. How, when and by whom the d10 was invented is beyond the scope of my knowledge.
(edit)The Zocchihedron, the die with 100 sides from Zocchi, came out a couple years before a d%.
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